The scenario - House has been PPR for 1 year 10 months. Second house bought so letting out 1st house. (Stamp duty difference is owed). If first house is sold after 1 year 2 months then how is CGT liabilty recorded. If it were a clean 2 years PPR and 1 years rental it would normally be (3 - 2)/3 to give a 33% CGT liabilty on the sale price but what way are the years rounded? Would it be worth waiting 2 months before letting for this reason ?